What is the ruling on the penalty clause represented by taking five thousand dinars in exchange for granting females their right to inheritance, and is it permissible to take this amount if the sisters agree?

If the deceased's estate is sold in installments, each installment received is common property among the heirs, and it is not permissible to prioritize one over another in receiving it. If the daughters agree to take the share of the males first in exchange for money they pay them, this is a forbidden usurious loan, because it is a loan with a condition of increase. If the males agree to give the females their share from the first payments for free, it is a good loan (Qard Hasan) and there is no harm in it.